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A TULASNELLA PARASITIC ON AMOEBA TERRICOLA
Author(s) -
Drechsler Charles
Publication year - 1969
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1969.tb09779.x
Subject(s) - basidiospore , biology , hypha , botany , haustorium , amoeba (genus) , spore , ecology , host (biology)
A microfungus attacking Amoeba terricola through germination of an adhering basidiospore is newly described as Tulasnella zooctonia . After intruding a branched haustorium into the animal, the spore extends one to three divergent procumbent hyphae externally, which at intervals give rise to obovoid hypobasidia. Some hypobasidia are oriented ascendingly and produce two to five globose epibasidia on the distal end, but many others lie prostrate on the substratum and form epibasidia on the exposed upper side. In either positional relation the epibasidia readily produce tapering sterigmata, each bearing an obovoid basidiospore provided with a conspicuous basal protrusion. Clamp connections have not been observed, nor any elaboration of waxy or gelatinous material.